Step 1
Prepare a barbecue grill for medium-high heat. Coat corn with oil and season with salt and pepper. Barbecue corn, turning occasionally, for 18 mins or until well charred. Cut corn kernels from cobs into a large bowl.
Step 2
Meanwhile, in a small bowl, whisk mayonnaise, sour cream, fetta, lime zest and lime juice. Season crema with salt and pepper.